The present invention provides image display panels, spacers and spacer units for the same and methods for making and using the same. The spacer units include an assembly having a first layer of generally parallel fibers positioned to form intersections with generally parallel fibers of a second...http://www.google.es/patents/US5834891?utm_source=gb-gplus-sharePatente US5834891 - Spacers, spacer units, image display panels and methods for making and using the same
Spacers, spacer units, image display panels and methods for making and using ...
